Lebrecht steinmuller and carl steinmuller



(No Model.)

STEAM GENERATOR.

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. tion of a third modification.

" UNITED STATES ATENT QFFICE.)

LEBRECHT srmNMULLnR AND CARL STEINMULLER, or GUMMERSBAOH,

- GERMANY.

' STEAM-GENERATOR.

SPECIFIGATIQN forming part of Letters Patent No. 418,825, dated January7, 1890. Application filedApril 13, 1889. Serial No. 307,082. (Nomodel-l Patented in England August 9, 1884, No. 11,105.

To all whom it may concern:

Be it known that we, LEBREoH STEINMiiL- LER and CARL STEINMULLER,subjects of the Emperor of Germany, residing at Gummersbach, in theGerman Empire, have invented certain new and useful Improvements inSteam-Generators; and we do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableOthers skilled in. the art to which it appertains to make and use thesame.

A British patent, No. 11,105, dated August 9, 1884, has been obtainedfor a portion of this invention. f

This invention relates to steam-generators in which the steam isseparated from the liquid in a separate receiver fromthe boiler properin which the liquid is heated, and it is specially applicable to theevaporation of condensed lyes as formed in soda-recovery processes inthe manufacture of cellulose.

This invention consists in the novel construction and combination of theparts, as hereinafter fully described and claimed, whereby the steam ismore perfectly separated from the liquid.

In the drawings, Figure 1 is a vertical longitudinal section through asteam-generator, and Fig. 2 is a cross-section through the same. Figs. 3and 4 are respectively a sectional plan view and across-section showingamodification. Figs. 5, 6, and 7 show, respectively, a verticallongitudinal section, a cross-section, and a sectional plan view of asecond modification. Figs. 8 and 9 show, respectively, a sectional planview and a cross-sec- Figs. 10 and 11 are respectively a verticallongitudinal section and a sectional plan view of a fourth modificationin the construction of the steamgenerator.

B is the inlet for the hottest liquid into the receiver A, and O is theoutlet, both inlet and outlet being at the bottom of the receiver andadapted for connection with the boiler proper, in which the liquid isheated, and which is not shown in the drawings, as-it does not form anypart of the present invention. An outlet at for the steam is provided atthe top of the receiver above thelevel of the liquid. A versame.

tical chamber 1) is secured inside the receiver A, immediately over theinlet B, and a longitudinal chamber D is secured to the top I) of thechamber 1), above the level of the. liquid in the receiver, and isprovided with openings for the escape of steam and liquid. A secondlongitudinal chamber E is formed in the lower part of the receiver belowthe level of the liquid. One end of thislchamber communicates with thechamber 1) by means of holes 6, and the other end is placed incommunication with the outlet 0. The operation of the Variousmodifications is the The hottest liquid rushes upwardly through thevertical chamber 1) and the steam separates from the liquid in chamberD. Portions of the liquid also pass through chamber E toward the outlet0, and the steam is also liberated from the surface of the liquid in thereceiver. .Theinternal chambers prevent the frothing up of the liquid inthe vicinity of the steam-outlet a and permit the generation of drysteam.

In Fig. '1 the chamber D consists of a rectangular boX havingperforations in its under side for the escape of liquid and an open end61 for the escape of steam. The chamber E is provided'with an open end ein front of the outletO, or it may be extended beyond the said outlet,as shown by the dotted lines e In Figs. 3 and 4 the chambers D and E areshown formed of a series of pipes g and g, which are equivalent to therectangular chambers.

In Figs. 5, b, and 7 the chamber D is upwardly inclined and diminishedin size at its rear end d. A longitudinal diaphragm cl is securedin thechamber to facilitate the separation of the steam from the liquid.

In Figs. 8 and 9 series of tubes g and g are used as the equivalents ofchambers D and E, anda chamber 01 is inserted in the series of pipes gfor the same purpose as the said diaphragm.

In Figs. 10 and 11 the chamber E is downwardly inclined toward theoutlet 0, and is connected to the vertical chamber b by the concentricchamber W. The chamber D is connected to the top I) of chamber 1) andhas an inclined bottom for the liquid to run down, while the steamescapes through the open end (1' in the direction of the arrow.

Z is a branch for removing the still liquid or for blowing off thereceiver.

lVhat we claim is- 1. In a steam-generator, the combination, with thereceiver provided with an inlet and an outlet for the liquid at thelower part of it, of a vertical chamber over said inlet, a longitudinalchamber provided with openings for steam and liquid and secured to thesaid vertical chamber above the level of the liquid in the receiver, anda second longitudinal chamber below the level of the liquid andcommunicating with the said vertical chamber and the outlet,substantially as and for the purpose set. forth.

2. In a steam-generator, the combination, with the receiver providedwith an inlet and i an outlet for the liquid at the lower partof 1 it,of a vertical chamber over said inlet, a longitudinal chamberformed of aseries of; tubes provided with openings for steam and liquid and securedto the said vertical chamber above the level of thc liquid in thereceiver, and a second longitudinal chamber below the level of theliquid, formed of a series of tubes and communicating with the saidvertical chamber and the outlet, substantial] y as and for the purposeset forth.

3. In a steam-generator, the combination,

' chamber and the outlet, substantially as and for the purpose setforth.

In testimony whereof we affix our signatures in the presenoe'ot' twowitnesses.

LEBRECHT STEINMULLER. CARL STEINMULLER. \Vitnesses:

JUL. OVERTROFF, FRIEDR. WILH VORMSTEIN.

